Paper-fastener.



i. RiTTENHOUS E.

PAPER FASTENER. APPuc'mon FILED JAN-24. 1913 1,238,568; Patented-Aug: 28,1917.

gwvanko'a UNITED STATES PATENT OFFICE.

IRVIN RITTENI-IOUSE, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO HORACE F. CLARK, OF WASHINGTON, DISTRICT OF COLUMBIA.

PAPER-FASTENER.

To all whom it may concern:

Be it known that I, IRVIN RITTENHOUSE, a citizen of the United States of America, residing at WVashington, in the District of Columbia, have invented certain new and useful Improvements in Paper-Fasteners, of which the following is a specification.

The present invention relates to improve ments in paper fasteners, and more particularly to a type of paper fastener that may be properly designated a flat file fastener. This invention has for its object to provide a fastener for securing together a plurality of papers for the purpose of filing, such fastener being particularly adapted for use in flat or vertical filing systems. The invention set forth in this application is a division of my pending application filed March 10, 1910, Serial No. 548,339. The advantages of flat file fasteners of this type are fully set forth in my Patent No. 920,893.

The invention disclosed herein resides principally in the construction and arrangement of parts hereinafter more fully described in a preferred form, yet it is to be understood that minor detail changes may be made without departing from the spirit thereof as defined by the appended claim.

Referring to the drawing:

Figure 1 is a top plan view of a base member having a detachable fastener pin inserted therein;

Fig. 2 is a transverse sectional View taken on the line 2-2 of Fig. 1;

Fig. 3 is a view showing the complete fastener.

As shown in Figs. 1 and 2, the base member consists of a body portion 1 formed by bending the longitudinal sides 2 of a rectangular blank upon themselves until the adjacent edges meet in a straight line. The in turned sides are held a sufiicient distance above the main body portion by indentations or nibs 3 formed in the outer side and engagthe operation of Copies of this patent may be obtained for Specification of Letters Patent.

Patented A11 28, 1917.

Divided and this application filed. January 24,

ing the inner side of the main body portion 1, so as to allow of the insertion of the flexible fastening pin 4, the ends of which are bent up over the base member for the purpose of piercing the papers. The nibs or indentations 3 have the additional function of alining the fastening strip. In this type of base member a perfectly flat surface is presented throughout its entire length to the surface of the paper.

The operation of the complete fastener, as shown in Fig. .3 is as follows: The several parts of the fastener are assembled by inserting the fastening pin into the base member and bending the ends of the said fastening pin up over the edges of the base mem her. The papers to be secured by the device, after having been previously punched, are inserted over the bent up ends of the fastening pin. A flat plate formed with perforations, as shown in Fig. 3, is then placed over the outermost sheet and the ends of the fastening pin are bent down to engage the paper.

Having described my invention, I claim In a paper fastener, the combination, of a base member having longitudinal sides 1nturned and meeting over the main body portion, a pliable fastening strip inserted between the main portion and inturned sides and bent up over the inturned portions, said inturned portions having a plurality of struck in portions on each side of the center line of the main body, positioning the fastening strip and spacing apart the inturned portions from the main body of the base.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

IRVIN RITTENHOUSE.

Witnesses EDWARD S. WHITE, CLARA Gr. EVANS.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

